I’m not sold on H2 for garbage trucks (or most applications, really). Their routes are relatively short and predictable, and they don’t operate 24/7, so they’re a better fit for BEV than H2.
As an aside, I was recently surprised to find out during a trip to Ghent, Belgium, that ICE garbage trucks are not inherently loud. One pulled up right next to our outdoor cafe, not 30 feet from where we were sitting, and we didn’t even have to raise our voices. It was no louder than a modern passenger car, both when it drove up and when it operated the arm. I’m sure it’s more expensive to make them so quiet, but I’m guessing still cheaper than full electrification. Given the low daily mileage, ICE might even be the most sustainable option, given the emissions cost of a large battery.